Floor-drain valve



Aug. 21, 1928. 1,681,394

F. w. CARLSON FLOOR DRAIN VALVE Filed July 25, 1927 Patented Aug. 21, 1928.

UNITED STATES g W.` oARLsoN, oF- CHIGAGO, ILLINOIS;

y Appunonrmen my e5, me. Yaerial m- 208,239.

This `intention relates to floor drain .yalves and it hasfor itsfoba'ect toprovide asimple, durable and dependablevalve ywhich will not leak and permit `back .Water ,or sewergas to Ipass.therethrough and which .een blniekly o erated to .open orA .close .the ,ralve a easily isaeeelnbled without .removrng .theeaslng 91, body of the valveftoperrnlt .access-tothe F109? drain ,Vabres are usually `set nowa- (leyelin eementloors on one .endete Sewer `pille endlprovded with ecwater .seal against sewer gas from passing through ,the valve. Ifthe vulve left open vfor asuelent time the natural evaporation Aof `the water, 1S .not replenished, Willjbreak .the seal and allow sewer gas Cto flow into theburldlng. There are floor `.drain Valves .in `use which .are provided withfmovable means .to openrandelose the valvabut 1.they are `diticnlttooperate, they easily Abecome stuekfand lnoperetlvenln some eases .the movablemeans 1s :not readily observable or accessible anditis `my observation., generally Speaking, that they ere mef- .cient for the .pur osefintended because :they willnot prevent .t eseape ofsewer gas .when the `.Water .seal -s destroyed' even `when lthe merable parte 4of thedran fvelvegare .closed- 'My nrentionalso has'forits .obleet .toppovide an eioient closure for alloerdraln relire which will reventthe eseapeof ,sewergas therethroug t if the Water .seal 'the sewer `p ipe `is .destroyed by eva-poration or .othert nd Ya `furtherobject of the `invention is to prov-ide a "floor .drain Yalve VwithQoperable parts 1of simple (.:OlS/,ruotion ,which can be easily operated vforopening and ,closing ,the valve as desired.

In the accompanying .drawings 1llustrating fa lselected embodiment. of my invention:

. Fig. 1 is a top plan .View .of theoorfdrain p `valve with ,the bar strainer-toppartly broken awe. Y v l 4 2 2 isaptransverse Vsectinll vietar .on the line 2-2 of Figfl, showingithe .valye parts in Closed position.. Y

` `F' .313 isatransverse sentionalyiewpnthe t FigA isa ,horizontal sectional viewpn `,the

lint 1f-4 .of ria e. 1 e

lgnis a detail sectional view;

. or lburly of .the #valve hab/ingle redaeedend to engage :a sewer pipe and a peripheral `,Harige 8 `tozbeseated, [substantially flush with a basement `floor. An inner closure plate .9 is seated .upon ya peripheral shoulder land s removably fastened-thereto by `screws V11. Thenller plate. 9 is 4provided ywith a notch 12 to `engage a lug ,13 on the easing `for registering the inner plate fin proper'k positioniin the easing, so ,that kthe screws 11 may be .readily engaged with the holes provided for .themjn the easing. The inner pla-te hasI a .d8- pendlng and transversely disposedcomparavtively narrow ,troughdike portion V,14 which felinos a chamber 15.

A plurality of seats 16 are arranged in parallel relation across the chamber 11:5 in the `top .oftheV inner plate to receive elongated .cores 17 which are 4providedwith aplurality ,of transverse passages 18, An outer clamp:

ving plate `19 is removably fastened to the vinner plate 9 by .screws 2() `and .itis provided .on its hotter-n with seats 2Mo-receive the cores V17. The' outer-plate isi-provided with a notch 20 to register With the lug 13 so Ytlmtft-he YOuter plate .will be properly positioned with respect totaeinnerplate. The seats 16 and ,21are relatively shallow, the cores .17 `fits Asnugly therein and space theouter and inner .-platesepilrt- The inner plate heeopenings .22 and the :outer plate has openings `2 3 to Register with .the transversepassages `18 in the `ycores. 24ore `rigidly :secured to `.the ,cores and projtcet downward 'therefrom in Jparallel relationand are engaged ,at their lowerends witha `transverse llink 425. The arm of one oore, preferably `the middle core, as shown, `proj'tects upward through an 4open- ;ing26 in the upper naemberand 'forms a lever .arm 27. .Aaemovable top 2S is Iadapted :to be. ,seated in `.the npper.` end yof the casing and `upon tthe .outer .plate 18 and it is proyided Wth. a plurality of alternate 29..andslots 30- .A 11.01 3:1 -iS 4provided -in the rperipheral portion of the leap te Iengaged with the vleger ,arm 27 toprovide.a-oonvenlentmeans j.for-operatingythe loyer if My ,invention `provides a floor `,dra-in -valve ,of simple and eoient eonstruetion whloh een he'eesilaiestalled, the :movable parte .of`

heredY .te prevdenthe round .Meneses ,1,8

which are spaced apart and do not materially weaken the cores. These cores operate snugly in the seats in the inner and outer plates, but I pack the space 32 between the plates with heavy grease to form an eticotive seal for the valve and to facilitate the operation of the movable parts.

The use of this gr xase makes it unnecessary to machine finish any ot the parts except possibly the seats and cores. I prefer to make the casing and top of cast iron, the inner and outer plates otl brass castings and the cores and arms of brass bars. The plate may be secured as tightly as desired to the inner plate by means of the screws to form an e'licieut closure through the cores, but this adjustment should always be such as to permit the cores to be operated Whenfrequired after opening and closing the valve.

Changes in the form, construction and arrangement of parts may be made Without departing from the spirit and Without sacrifeing any of the advantages thereof and I reserve the right to make all such changes as fairly fall Within the scope of the following claims.

I claim:

l. A :floor drain valve comprising a casing, an inner plate secured to the easing and having a plurality of parallel seats therein, said seats having openings through the plate, a plurality of cores arranged in said seats and having passages to register with the openings in the plate, and means for operating said cores.

2. A Hoor drain valve comprising a casing, an inner plate secured to the casing and having a plurality of parallel elongated seats therein, said seats having openings through the plate, a plurality of round bar cores arranged in said seats and having transverse passages to register with the openings in the plate, and means for operating said cores.

3. A floor drain valve comprising a casing, an inner plate secured to the casing and having a plurality of parallel seats therein, an outer plate having a plurality of seats therein. the seats in the outer plate being disposed opposite the seats inthe inner plate and all ot' said seats having openings through the respective plates. a plurality ot cores arranged between the plates in said seats and having passages to register with the openings in the plates, and means for operating said cores.

4. A floor drain valve comprising a casing, an, inner plate secured to the easing and having a plurality of parallel seats therein, an outer plate having a plurality of parallel `seats therein, the seats in the outer plate being disposed opposite the seats in the inner plate and all of said seats having openings extending through the respective plates, means for detachably securing the outer plate to the inner plate, a plurality of cores arranged in said seat and having passages to register with the openings in the plates, and means tor operatin g said cores.

5. A floor drain valve comlirising a casing, an inner plate secured to the casing and having a plurality ot elongated parallel seats therein` an outer plate removably secured to the inner plate and having a plu fality of seats therein disposed opposite the seats in the inner plate, the seats in the outer plate having openings which register with openings in the seats in the inner plate, a plurality ot round bar cores arranged in said seats and having passages to register with the openings in the plates, and means tor operating said cores.

6. A floor drain valve comprisinfY a casing, an inner plate secured to the casing and having a transversely extending trough-like portion forming a chamber, a plurality of parallel seats in the plate, said seats having openings through the plate, a plurality of cores arranged 1n said seats and having passages to register with said openings, and means arranged in said chamber for operating said cores.

7. A floor drain valve comprising a casing, an inner plate secured to the caisng and having a transversely extending trough-like portion forming a chamber, a plurality of parallel seats in the plate, said seats having openings through the plate, a plurality of cores arranged in said seats and having passages to register with said openings, and means in said chamber connecting the cores for simultaneous operation.

8. Akiioor drain valve comprising a casing, an inner plate secured to the casing and having a transversely extending trough-like portion forming a chamber, a plurality of parallel seats in the plate, said seats having openings through the plate, a plurality of cores arranged in said seats and having passages to register with said openings, and means in the chamber connecting the cores for simultaneous operation and comprising arms rigid with the cores and a link connecting the arm.

9. A floor drain valve comprising a casing, an inner plate secured to the casing and having a transversely extending trough-like portion forming a chamber, a plurality of parallel seats in the plate, said seats having openings through the plate, a plurality of cores arranged in said seats and having passages to register With said openings, means in the chamber connecting the cores for simultaneous operation and a lever projecting above one of the cores and rigid therewith for operating said means and cores.

l0. A floor drain valve comprising a casing, an inner plate' secured to the casing and having a transversely extending trough-like portion forming a chamber, a plurality ot parallel seats in the plate, said seats having openings through the plate, a plurality of cores arranged 1n said seats and having passages to register with said openings, and

llU

means for operating the cores simultaneously ing, a movable valve member mounted in the comprising arms rigid with the cores and easing, a lever arm for operating said valve projecting into said chamber, a link connectmember, and a skeleton top vhaving an open- 10 ing the inner ends ofthe arms, and a lever ing arranged to be engaged with said lever 5 engaged with one of the cores for operating arm.

said means and cores.

11. A oor drain valve comprising a cas- FRANK W. CARLSON. 

